TO

Tadao Otsuka

HI Hitachi: 2 patents #13,388 of 28,497Top 50%
KC Kyokuto Kaihatsu Kogyo Co.: 1 patents #7 of 35Top 20%
Overall (All Time): #2,346,820 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4592566 Coupling mechanism for king pin Akira Inoue 1986-06-03
4572537 Coupler for connecting trailer to tractor Takashi Hattori 1986-02-25